Quality control issues - SIG SAUER Romeo3 MAX 1x30mm Red Dot Sight

First one was bad out of the box : couldn't adjust vertical. I know four people with the same issue on their first one. Second one has lasted only 2000 rounds of low recoil ammp before the same problem developed. Sig is sending a refurbished sight. For this kind of money, i should get at least two years of heavy use before a failure.